Dr. Seuss, whose real name is Theodor Geisel, was born and raised in Springfield. He wrote and illustrated dozens of rhyming children's books including "The Cat in the Hat" and "Green Eggs and Ham." A Dr. Seuss museum opened in the city earlier this year and the Democratic mayor notes that attendance has been "through the roof."

A spokeswoman for Melania Trump said the Cambridge librarian's response was "unfortunate" and the first lady remains committed to children's causes.

Soeiro could not immediately be reached for comment. But in a blog post the librarian called Dr. Seuss a "tired and worn ambassador for children's literature"and said his illustrations are "steeped in racist propaganda, caricatures, and harmful stereotypes."

She also suggested that more thought could have gone into the selection of the books, saying that "Dr. Seuss is a bit of a cliché..."

The Cambridge school system distanced itself from Soeiro's opinions, saying her comments were "not a formal acceptance or rejection of donated books."